An investigation of glass-fibre-reinforced polyamide 66 during conditioning in various automotive fluids

Thomason, James L. and Porteus, Glen (2011) An investigation of glass-fibre-reinforced polyamide 66 during conditioning in various automotive fluids. Polymer Composites, 32 (9). pp. 1369-1379. ISSN 0272-8397 (https://doi.org/10.1002/pc.21160)

[thumbnail of Thomason_JL_Pure_An_investigation_of_glass_fiber_reinforced_polyamide_66_during_conditioning_in_various_automotive_fluids_30_June_2011.doc] Microsoft Word. Filename: Thomason_JL_Pure_An_investigation_of_glass_fiber_reinforced_polyamide_66_during_conditioning_in_various_automotive_fluids_30_June_2011.doc
Preprint
Download (765kB)

Abstract

Injection moulded glass-fiber reinforced polyamide 66 composites and unreinforced polymer samples have been characterised during conditioning up to 900 hours in water, ethylene glycol and water-glycol mixture at 50°C and 70°C. All materials showed significant fluid and temperature dependent weight and volume increase. Glass reinforcement significantly reduced the polymer fluid uptake. The absorption of the antifreeze mixture initially follows a simple rule of mixtures of the absorption of the two individual components. However, after absorption of approximately 5% a significantly higher than predicted level of antifreeze absorption was observed. This coincided with a significant increase in the volumetric swelling coefficient. Dynamic mechanical analysis and unnotched impact testing indicated significant changes in composite mechanical performance dependent on conditioning fluid and temperature.

CORE (COnnecting REpositories)